Hi Flash, K.Nakarin is a Thai Welding Engineer working on fabrication of modules for shipment to Australia. (AS/NZS 1554.1) The specifications require UT testing on any CJP Tee junction (Tee joint) greater than 23 mm. That seems very thin (most specs state greater than 30 or 36 mm) but if it is in the spec it must be complied with. Unfortunately it is too late now – should have been picked up prior to fabrication starting and a TQ issued to the client. Cheers, BB
Hi Nak and BB I was a bit confused, Tee Joint and Junction I would suggest is intended to mean the same thing, just different terminology, hence the request for pictures
I tend to agree with BB it is usually 32mm plate and greater (32mm being the next standard size after 25mm)
This 32mm rule is usually a blanket statement that cover fillets as well, the extract below specifically lists Full Pen T Butt, it seems a bit excessive, but it would be justified if it was a cruciform configuration
Has Z grade plate been specified?
Is It being UTed to AS1710, if so does it say what class is it Class 1 or 1E, really it should 1 before cutting the plate and be 1E after cutting of the plate, with E being edge scan (lower allowable discontinuities), I have seen 1E specified for the entire plate not just edges
There has been a tendency to ‘spec up’ the criteria for imported fabrication due to some of the issues experienced, particularly with materials.
Let us know (if possible) if the client swallows the TQ R Flash